I'm writing a fax document import facility. We receive faxes using Hylafax
which get converted to PDF and uploaded to a web server.
My web interface then allows the PDF documents to be split into single pages
and injected into a database.
I create the thimbnails by calling
convert -thumbnail 450 $1 ${1}.jpg
which creates a series of JPEG files one for each page.
Because some people don't know which way up to put pages into a fax machine I
also give the user the ability to invert a fax by calling
/usr/bin/convert $1 -rotate 180 $2
However, the resulting PDF file is very poor quality so I changed this to
/usr/bin/convert $1 -density 300x300 -rotate 180 $2
which fixed the quality in the PDF file which then looks as good as the
original, but is now the right way up.
My problem is then that if I use this new PDF file to create the thumbnails
using the top convert command the resulting image is still the same size, but
the whole of the contents of the page is squashed in the bottom left corner
and the rest of the image is plain while.
Can anyone help with this?
--
Gary Stainburn
Group I.T. Manager
Ringways Garages
http://www.ringways.co.uk
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